// Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

//

#ifndef __A2DPBTHEADSETAUDIOIF_H__

#define __A2DPBTHEADSETAUDIOIF_H__

#include <e32base.h>

#include <bttypes.h> //TBTDevAddr

#include <es_sock.h> //RSocketServer, RSocket

#include <bt_sock.h> //RBTPhysicalLinkAdaptor

#include "GavdpStateMachine.h"

#include "RTPStreamer.h"

class CA2dpCodecUtilities; //fwd ref

class CMMFCodec; //fwd ref

class TRange;	// fwd ref

/**

API to access and send audio to an A2DP compliant audio headset

This API is used internally within the Symbian reference 

CMMFDevSound/CMMFHwDevices/CRoutingSoundPlayDevice.

@internalTechnology

*/

class CA2dpBTHeadsetAudioInterface : public CBase, public MGAVDPStateChangeObserver, public MRTPStreamerObserver

	{

public:

	IMPORT_C static CA2dpBTHeadsetAudioInterface* NewL();

	IMPORT_C ~CA2dpBTHeadsetAudioInterface();	

	IMPORT_C void Initialize(const TBTDevAddr& aRemoteAddress, TRequestStatus& aStatus);

	IMPORT_C void CancelInitialize();

	IMPORT_C TInt GetSupportedDataTypes(RArray<TFourCC>& aSupportedDataTypes) const;

	IMPORT_C TInt GetSupportedSampleRates(RArray<TUint>& aSupportedDiscreteRates, RArray<TRange>& aSupportedRateRanges) const;

	IMPORT_C TInt GetSupportedChannels(RArray<TUint>& aSupportedChannels, TMMFStereoSupport& aStereoSupport) const;

	IMPORT_C TInt SetDataType(const TFourCC& aDataType);

	IMPORT_C TInt SetSampleRate(TUint aSampleRate);

	IMPORT_C TInt SetChannels(TUint aChannels, TMMFStereoSupport aStereoSupport);

	IMPORT_C void OpenDevice(TRequestStatus& aStatus);

	IMPORT_C void CancelOpenDevice();

	IMPORT_C void CloseDevice(TRequestStatus& aStatus);

	IMPORT_C TUint Volume() const;

	IMPORT_C TInt SetVolume(TUint aVolume);

	IMPORT_C void PlayData(const TDesC8& aData, TRequestStatus& aStatus);

	IMPORT_C void CancelPlayData();

	IMPORT_C void FlushBuffer();

	IMPORT_C TUint BytesPlayed() const;

	IMPORT_C void ResetBytesPlayed();

	IMPORT_C void PauseBuffer();

	IMPORT_C void ResumePlaying();

	IMPORT_C void NotifyError(TRequestStatus& aStatus);

	IMPORT_C void CancelNotifyError();

	//APIs only used for unit testing purposes - not needed for BT server or routing sound device

	IMPORT_C MGavdpUser* TEST_MGavdpUser();

	IMPORT_C void TEST_ForceRemoteSBCCodecConfiguration(const TSBCCodecCapabilities& aRemoteCodecConfiguration);

private:

	CA2dpBTHeadsetAudioInterface();

	void ConstructL();

	void ProcessGAVDPStateChangeIdleToOpen(TInt aError);

	void ProcessGAVDPStateChangeOpenToStreaming(TInt aError);

	void ProcessGAVDPStateChangeStreamingToOpen(TInt aError);

	//MGAVDPStateChangeObserver

	void GAVDPStateChangeComplete(const TGAVDPState& aInitialState, TInt aError);

	void GAVDPStateMachineEvent(TInt aError);

	void GAVDPStateMachineStreamSuspendedByRemoteHeadset();

	TInt GAVDPStateMachineReconfigureByRemoteHeadset();

	void GAVDPStateMachineStreamResumedByRemoteHeadset();

	//MRTPStreamerObserver

	void RTPStreamerEvent(TInt aError);

	TInt SetSniffMode(TBool aSniffMode);

private:

	//owned classes

	CGAVDPStateMachine* iGAVDPStateMachine;

	CActiveRTPStreamer* iRTPStreamer;

	CMMFCodec* iCodec;

	CA2dpAudioCodecConfiguration* iA2dpCodecConfiguration;

	RSocketServ iSocketServer;

	RBTPhysicalLinkAdapter iBTPhysicalLinkAdapter;

	TRequestStatus* iInitializeRequestStatus;

	TRequestStatus* iOpenDeviceRequestStatus;

	TRequestStatus* iCloseDeviceRequestStatus;

	TRequestStatus* iNotifyRequestStatus;

	TFourCC	iDataType;

	TBool	iAudioSettingsHaveChanged;

	TBool	iReconfiguring;

	TBool	iPaused;

	TInt iOpenDeviceError;

	};

#endif